Re: [PATCH 18/19] dt-bindings: gpio: describe Waveshare GPIO controller

Rob Herring (Arm)
2026-04-01T08:52:03Z

On Wed, 01 Apr 2026 10:26:37 +0300, Dmitry Baryshkov wrote:
> The Waveshare DSI TOUCH family of panels has separate on-board GPIO
> controller, which controls power supplies to the panel and the touch
> screen and provides reset pins for both the panel and the touchscreen.
> Also it provides a simple PWM controller for panel backlight.
>
> Add bindings for these GPIO controllers. As overall integration might be
> not very obvious (and it differs significantly from the bindings used by
> the original drivers), provide complete example with the on-board
> regulators and the DSI panel.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
> .../bindings/gpio/waveshare,dsi-touch-gpio.yaml | 100 +++++++++++++++++++++
> 1 file changed, 100 insertions(+)
>

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/gpio/waveshare,dsi-touch-gpio.example.dtb: dsi_panel@0 (waveshare,8.0-dsi-touch-a): 'iovcc-supply', 'reset-gpio' do not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/display/panel/jadard,jd9365da-h3.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/gpio/waveshare,dsi-touch-gpio.example.dtb: dsi_panel@0 (waveshare,8.0-dsi-touch-a): 'vccio-supply' is a required property
from schema $id: http://devicetree.org/schemas/display/panel/jadard,jd9365da-h3.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/gpio/waveshare,dsi-touch-gpio.example.dtb: dsi_panel@0 (waveshare,8.0-dsi-touch-a): 'reset-gpios' is a required property
from schema $id: http://devicetree.org/schemas/display/panel/jadard,jd9365da-h3.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260401-waveshare-dsi-touch-v1-18-5e9119b5a014@oss.qualcomm.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.